Brick-cleaning machete



N. T. FULLER.

BRICK CLEANING MACHINE.

APPLICATION FILED DEC. as. 1918.

1,309,405. Patented July 8, 1919.

UNITED STATES PATENT OFFICE.

NELSON T. FULLER, OF NEW BEDFORD, MASSACHUSETTS.

BRICK-CLEANING MACHINE.

Application filed December 16, 1918.

T 0 all whom it may concern:

Be it known that I, NELSON T. FULLER, a citizen of the United States, residing at New Bedford, in the county of Bristol and State of Massachusetts, have invented new and useful Improvements in Brick-Cleaning Machines, of which the following is a specification.

This invention relates to certain new and useful improvements in brick cleaning machines and pertains more particularly to a machine employed for the purpose of removing mortar from bricks which latter have been previously used in building.

The primary object of the invention is to provide a machine of this character which will enable the removal of the mortar to be effected easily and quickly and without danger of fracturing or otherwise injuring the brick.

The invention more particularly resides in the details of construction and combination of parts to be now fully described and pointed out in the claims.

The drawings illustrate a perspective view of the invention.

In proceeding in accordance with the in vention, a suitable base plate 1, is employed supported preferably by legs 2, a table struc' ture being thus provided which can be easily transported as desired. Extending upwardly from the plate 1, are a pair of spaced vertical standards 3, between which an arm 1 extending upwardly from a knife 5, is pivoted at 6. A pair of spaced arms 7, eX tend upwardly from the opposite end of the knife and are guidingly engaged by a guide bar 8 which latter is secured to the plate 1 and extends upwardly therefrom. The arms 7 are rigidly connected to a handle 9 which latter connects the outer ends of the arms.

A bearing 10 is mounted on the plate or table top 1, and slidably receives a pusher bar 11, the latter having a plate 12 a'fiixed to its outer end. The opposite end of the bar 11, has a pin 12, affixed thereto and an abutment 13 affixed to the pin in spaced relation to said end of the bar. The pin 12, projects through a slot 141 formed in a lever which latter has a curved end 15, and a downwardly and forwardly curved lower end portion 16, the end 15 having the slot therein and being curved so as to engage the adjacent end of bar 11, when the lever is operated as will be shortly described. The abutment 13, acts to prevent the curved end Specification of Letters Patent.

Patented July 8, 1919.

Serial No. 267,080.

15 from being disengaged from the pin 12. The portion 16, of the lever is pivoted to and between a pair of arms 17 that depend from the table 1. A spring 18 serves to tension the lever in an upward direction as concerns the free terminal of the portion 16 thereof so as to normally hold the outer curved portion thereof in the position de pictcd in the drawings.

A foot lever 19, is pivoted at 20 to an arm 21 which is secured to the table and depends therefrom, and through the intermediary of a link 22, pivoted to the end portion 16 of the lever first mentioned, and to the lever 19, will, upon depression of the latter lever move the portion 15, in an upward direction to thereby effect an inward movement of the pusher bar 11 toward the knife 5.

In operation, the brick is placed on the table with the face thereof to be cleaned set in a vertical plane and in confronting relation to the knife, the spring acting to hold the pusher plate spaced sufficiently from the knife so that upon depression of the foot lever 19, the bar 11, will, through the intermediary of the plate 12, sustain the brick in a position to resist any tendency of the knife 5, which latter is moved downwardly in an obvious manner, to more the brick sidewise or out of a position enabling the knife to out the mortar from the face of the brick. The brick is then turned to present another face to the knife so as to effect cleaning in a manner similar to that just described. The operator in depressing the foot lever 19, can readily see when the brick face to be cleaned alines with the heel of the knife adjacent the pivotal point thereof, and upon downward movement of the knife can increase the pressure slightly on the foot lever so as to thus provide a more effective cutting action and consequent removal of the mortar. Thus any recoil of the brick during the shearing action of the knife is prevented.

lVhat is claimed is 1. In a brick cleaning machine, a base, cutting means associated with the base, brick engaging means on the base slidable in a plane transversely of the plane in which the cutting means operates, a foot operated depressible member, and means to connect said member to the brick engaging means so as to enable the latter to be adjustably and in stantaneously actuated by and upon depression of the foot operated member.

In a brick cleaning machine, a base, a knife pivoted to the base, a bearing on the base, a bar slidable in the bearing, a plate borne by an end of the bar, a pin extending outwardly from the opposite end of the bar, an abutment mounted on the pin, a lever pivoted to the base beneath the latter and having a curved end engaged between the abutment and the adjacent end of the bar and formed with a slot through which the pin projects, a spring for tensioning the lever, a foot lever pivoted to the base, and a link pivoted to the foot lever and to the first named lever for moving the bar toward the knife upon depression of the foot lever.

3. In a brick cleaning machine, a base, a pivoted knife thereon, a pusher bar slidable transversely of the knife so as to cooperate with the knife in shearing of the mortar from the brick, a lever pivoted beneath the base and having a curved end bearing against an end of the bar to move the latter toward the knife, and a foot lever connected to the first named lever for actuating the latter.

4:. In a brick cleaning machine, a base, a pivoted knife thereon, a slidable presser bar Copies of this patent may be obtained for five cents each, by addressing the on the base movable transversely of the knife, a pin projecting out from an end of said bar, a lever pivoted beneath the base and having a curved end formed with a slot through which latter the pin projects, and foot operated means for actuating the lever and therethrough the presser bar.

5. In a brick cleaning machine, a base having a pivoted knife thereon, a slidable presser bar on the base to engage and hold the bricks during the shearing of the mortar from the bricks,- a lever having a curved end bearing against one end of the bar, means to pivotally support said lever beneath the base, a foot lever beneath the base, a link connecting the foot lever to the opposite end of the first named lever, and means to support the rear end of the foot lever from the base.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

NELSON T. FULLER.

\Vitnesses ROBERT A. TERRY, HENRY W. MASON.

Commissioner of Patents.

Washington, D. G. 

